baber/WOPTO huggingface dataset:
Patent GB-971511-A (GB)
Title: A carpet securing device
IPC: A47G27/04
Filed: 1962-01-31
Abstract: 971,511. Securing carpets to floors. ROBERTS CONSOLIDATED INDUSTRIES Inc. Jan. 31, 1962 [Aug. 11, 1961], No. 3624/62. Heading A4S. A carpet-securing strip 10 has an upwardly curving base 11 which is flat on installation, nail holes 18 which are filled with mastic 19 to support the nails 29 before hammering, a flange 31 which is bent over the carpet and a p.v.c. "appearance" strip 33 which hooks over the flange 31 enables short pieces of the strip 10 to be used. Specification 971,512 is referred to. Reference has been directed by the Comptroller to Specification 834,046.
Patent GB-801037-A (GB)
Title: A process for the preparation of sulphonyl chlorides
IPC: C07C309/78
Filed: 1957-02-01
Abstract: Organic sulphonylchlorides are prepared from aliphatic, aromatic or heterocyclic thiolic compounds or their corresponding disulphides, or from isothiouronium salts of the formula: <FORM:0801037/IV (b)/1> where R is alkyl or aralkyl, by the concomitant action of hydrochloric acid and chloric acid or at least one of its salts. The process is preferably carried out by dissolving or suspending the sulphur compound in 15-40 per cent hydrochloric acid, with or without the presence of a water miscible solvent which is inert to chlorine under the conditions of the reaction, e.g. acetic acid, at between -5 DEG  C. and +30 DEG  C.  The aqueous, preferably alkaline solution of chloric acid or of a metal chlorate or solid finely-divided alkali metal chlorate may then be introduced in stoichiometric proportion or in excess with respect to the oxidation reaction.  The reaction product may be separated by filtration, decantation or extraction with solvents before or after diluting with water.  The solvents used should be those which are substantially insoluble in water and inert to chlorine and acid.  If desired, concentrated hydrochloric acid may be added to a solution or suspension of the sulphur compound to be oxidized in a saturated aqueous solution of an alkali metal chlorate. Examples are given of the preparation of benzene sulphonyl chloride from (1) thiophenol and sodium chlorate; (2) diphenyldisulphide and sodium chlorate; benzylsulphonylchloride from dibenzyldisulphide and sodium chlorate; 2-acetylamino-3,4-thiodiazole-5-sulphonylchloride from 2-acetylamino-5-mercapto-3,4-thiodiazole and sodium chlorate or a mixture of potassium and sodium chlorate; n-butylsulphonylchloride from n-butyl isothiouronium bromohydrate and sodium chlorate.
Patent GB-1436675-A (GB)
Title: Apapratus for receiving encoded facsimile signals with minimized effect of pulse error introduced during transmission
IPC: H03M7/00
Filed: 1974-01-25
Abstract: 1436675 Copying by scanning MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Jan 1974 [25 Jan 1973] 03669/74 Heading H4F Timing or amplitude errors in a received coded facsimile signal are detected by a circuit 16, detection or an error producing an error signal, Fig. 5, which causes at least part of the line containing the error to be omitted from the reproduction; the omitted line may be replaced by the following line which is thus repeated. The error signal from circuit 16 sets a flip-flop FF 0  which is reset by the following line synchronizing pulse to produce a disable signal, Fig. 5. The error signal may be applied directly to an inhibit gate (13, Fig. 1, not shown) to cause the portion of the error-containing line from the error to the end of the line to be omitted from the reproduction. In the embodiment shown in Fig. 2 the disable signal from flip-flop FF 0  is fed to a monostable multivibrator MM 0  to produce an erase trigger signal, Fig. 5, which is fed to a flip-flop FF 1  to produce an image erase signal, Fig. 5, and this is fed to an inhibit gate 13 which causes, due to a one-line delay line 70, the whole of the error-containing line to be omitted from the reproduction. In a further embodiment (Fig. 3, not shown) the erase trigger signal from multivibrator MM 0  is used to delete one synchronizing pulse from the output of sync. separator 17, thus causing the line scan generator 18 and vertical pulse generator 19 to be disabled for one line scan, the image erase signal from flip-flop FF 1  being used to generate, via two flip-flops (MM 1 , MM 2 ), a new synchronizing pulse which is located one line period after the synchronizing pulse following the deleted pulse, the new synchronizing pulse being fed to generators 18, 19 to cause an extra line scan, and to a read-out gate (83) to read out a signal delayed by a one-line delay (84) connected to the output of inhibit gate 13, the output of the read-out gate being supplied to display 20 so that the signals of the line after an error-containing line are reproduced on two successive lines.  The display device 20 may include a fibreoptics cathode-ray tube performing line scan, a recording medium being moved at right-angles to the line scan in response to the output pulses from vertical pulse generator 19. Detecting circuit 16 may comprise four comparators (40, 45, 46, 51, Fig. 4, not shown) and provide an error indicating pulse when the amplitude of the input signal is not within either of two preselected amplitude bands on the occurrence of a timing pulse from generator 15; alternatively circuit 16 may include a differentiating circuit used in detecting timing errors of the input signal.
Patent GB-111961-A (GB)
Title: Improved Combined Condenser and Heat Interchanger.
Inventor: RICHARDSON CLIFFORD KILBURN
IPC: B01D3/04
Filed: 1917-03-14
Abstract: 111,961. Richardson, C. K., and Hammond, T. C. March 14, 1917. Straight tubes between headers; concentric straighttube apparatus. - In a combined condenser and heatinterchanger for use in tar-distillation and other plants, the oil vapour &c. passes downwards through tubes b in a chamber a<5>, through which the crude tar &c. is fed, and the treated tar &c. is passed through an annular chamber c<1> around the chamber a<5>.
Patent GB-522075-A (GB)
Title: Improvements in or relating to flexible couplings for transmitting rotary motion
IPC: F16D3/56
Filed: 1939-02-06
Abstract: 522,075. Flexible shaft-couplings. EISENWERK WANHEIM GES. Feb. 6. 1939, No. 3833. Convention date, April 14, 1938. [Class 80 (ii)] Axially arranged flexible pins e, engaging flared holes f in shaft-flanges a, b are initially stressed circumferentially to eliminate play, by disposing at least one hole f in one of the shaftflanges a, b circumferentially offset in relation tu the corresponding hole in the other shaftflange. Where several rows of pins e are provided, part or all the holes of some of the rows, e.g., III and IV, Fig. 3, of one flange b are offset a circumferential distance h in relation to those of the other flange a. The pins are retained by rings i.
Patent GB-1466697-A (GB)
Title: Electron-emissive component
IPC: H01J17/49
Filed: 1974-01-28
Abstract: 1466697 Cathode materials COMMISSARIAT A L'ENERGIE ATOMIQUE and AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 28 Jan 1974 [30 Jan 1973] 03836/74 Heading H1D [Also in Divisions G1 G2 and G5] A cold cathode comprises a conductive substrate, a film of solid organometallic compound electrochemically deposited and a conductive layer. Electron emission is produced by a potential of a few volts applied across the compound, e.g. from an integrated circuit. Emission is a function of the applied voltage but is independent of polarity. The substrate and layer are of Pt, Al, An, Ni, Cu or porous sintered Ni. The metal in the compound is Na, Li or Ca. The cathode is prepared by immersing the substrate on a metal salt dissolved in an organic solvent and applying a potential to the substrate to produce an electrochemical reduction reaction at its surface resulting in the deposition of the compound. The solvent is HMPT or tetrahydrofuran with Li perchlorate. The conductive layer is added by sputtering. The substrate may be planar or cylindrical with the layers on its inner or outer surface. The cathode is used in diodes, triodes, thyratrons, gas discharge lamps, display panels, proximity switches, TV screens, light amplifiers and liquid crystal panels (see Divisions G4-G6). The use of this cathode in a diode provides the triggering function of a triode since current is dependent on the applied potential. Further since the current is not dependent on the polarity of the applied potential a rectifying effect can be achieved. An additional grid (26) Fig. 2 (not shown) may be added. A lamp comprises the cathode and a phosphor layer in vacuum Fig. 5 (not shown) or in a gaseous atmosphere when a discharge occurs. The lamps may be used in display panels with crossed conductor arrays or arranged in a figure of eight. Alternatively the cathodes may form a figure of eight with a single anode. A light amplifier comprises a photoconductive layer 154 between electrodes 156, 152, the latter being connected to one electrode 2 of the cathode which emits electrons proportional to the light input to energize a phosphor layer. In another light amplifier the photoconductive layer and emissive material of the cathode form a sandwich separated by a single electrode. This may be scanned by an amplitude modulated light beam.
Patent GB-288766-A (GB)
Title: Improvements in or relating to pumps
Filed: 1927-02-11
Abstract: 288,766. Harrington, T. S. Feb. 11, 1927. Actuating by liquid pressure; delivery column, balancing; assembling parts; liquid - piston pumps.-A pump for raising oil &c. from deep wells &c. comprises a barrel 3 removably attached to an anchor member 6 and to a collar 2 containing inlet passage 8 and valve 7 and delivery valve 10 and passage 11. The barrel 3 encloses a liquid piston, such as mercury, of greater density than the oil &c. to be raised, and this piston is reciprocated by means of a pulsating fluid column 12 which may be actuated by a plunger 14. During the down movement of the mercury, oil is drawn into the barrel 3 above the mercury through the port 8 and valve 7; during the upward movement this liquid is forced up through the valve 10 into the delivery pipe 1 surrounding the barrel 13 of the plunger 14. The plunger is operated from the surface by sucker rods 15, and the weight of these rods and the plunger balances the column of liquid in the pipe 1. Additional weight may be given to the rods and plunger by filling the barrel 13 above the plunger with liquid. The pipe 1 is detachably connected to the sleeve 2 to facilitate dismantling.
Patent GB-1181924-A (GB)
Title: Improvements in or relating to Furnace Combinations
IPC: F27B9/04
Filed: 1968-01-25
Abstract: 1,181,924. Rotary hearth furnaces. HOGANAS AB. 25 Jan., 1968 [15 Feb., 1967], No. 3887/68. Heading F4B. A rotary hearth furnace 1 for sintering or heat treating in powder metallurgy or for the reduction of metal oxides comprises a charging passage 9a, 9b with air lock 8 and ram 22 and a discharging passage 15a, 15b with air lock 14 and associated ram 23, the charging passage comprising a separating zone 9a and preheating zone 9b, and the discharging passage comprising a temperature maintaining zone 15a and cooling zone 15b. Zones 9a, 9b and 15a and the furnace itself may be equipped with electric resistance heaters or fluid fuel-fired radiant tubes and zone 15b may have water or air jacketed walls particularly in a zone furthest from the furnace. Apertures 12a and 12b, 7a and 7b and 19a-19d are provided in the charging passage the furnace and the discharge passage for the supply and/ or removal of atmosphere gas, e.g. H 2 , NH 3 , exogas or endogas. The furnace hearth may be made of sintered brick of MgO, Al 2 O 3  or ZrO 2  and has labyrinth powder or liquid seals with the walls (Fig. 2). The liquid may be water or a saline solution covered by a low vapour pressure oil, or may be a low M.P. alloy. The wave is carried by boxes or cages of refractory material and suitable conveyers are disposed in the various zones which are separated by apertured partitions 13 and 16 and sealed by doors 11 and 18.
Patent GB-524760-A (GB)
Title: Process for the treatment of carbonaceous materials with hydrogen or gases containing hydrogen, or for the cracking thereof
IPC: C10G45/08
Filed: 1939-02-07
Abstract: 524,760. Destructive hydrogenation; cracking hydrocarbons; catalysts. POTTS, H. E. (Naamlooze Vennootschap Hydrogeneeringsoctrooien Maatschappij (International Hydrogenation Patents Co.)). Feb. 7, 1939, No. 3936. [Classes 1 (i) and 32] [Also in Group IV] In the production of hydrocarbons by the catalytic hydrogenation or cracking of carbonaceous materials, the catalyst comprises metal sulphides obtained by mixing in a dry state ammonium thio salts of metals of the 6th group of the periodic system with carbonates or organic acid salts of iron, nickel or cobalt and heating the mixture at temperatures of 300-500‹C. at least until formation of ammonia ceases. The mixture may be ground before heating and heating may be carried out in the presence of reducing or sulphidizing gases e.g. hydrogen or hydrogen sulphide, or inert gases, e.g. carbon dioxide. In an example, 1 molecular proportion of nickel carbonate is ground with 2 molecular proportions of ammonium thiomolybdate and the mixture heated to 400-450‹C in a steam of hydrogen for 3 hours, the powder cooled in a stream of hydrogen and pelleted. Examples are also given of the use of this catalyst for the production of (1) diesel oil from a middle oil ; (2) benzine from bituminous coal ; (3) iso-octane from di-isobutylene and (4) a benzine free from phenols from a benzine containing phenols. Specifications 452,095, 452,158, 488,651 and 501,325 are referred to.
Patent GB-784873-A (GB)
Title: Improvements in the production of cellulose from lignocellulosic materials
Inventor: BATE STANLEY CHARLES
IPC: D21C1/00
Filed: 1955-02-10
Abstract: Cellulose is produced from lignocellulosic material by treating the latter first with water at over 140 DEG  C. and then with hot caustic soda solution of concentration below 3 per cent, and then subjecting the material to a pulping process in which the greater part of the lignin originally contained in the lignocellulosic material is removed by alteration by a chemical reaction other than sulphonation followed or accompanied by solution of the altered lignin.  The treatment with water may be carried out at 145-155 DEG  C. for 1-4 hours and the alkali treatment with aqueous caustic soda solution of 0.75-2.5 per cent concentration at above 80-90 DEG  C., e.g. at the boiling point for 0.5-2 hours.  In an example wood chips are heated to 150 DEG  C. with water for two hours, boiled with 1 per cent caustic soda solution under atmospheric pressure for one hour, washed with water, and heated for 5-6 hours at 60-70 DEG  C. with a 7 per cent aqueous solution of nitric acid.  The waste acid is then drawn off and the chips are heated to 90-95 DEG  C. for 1 hour with water, washed and heated in a 1 per cent aqueous solution of caustic soda for 1 hour at 100 DEG  C.  The resulting crude cellulose is filtered off and washed.  In another example wood sawdust pretreated with water and caustic soda solution, as described above, is suspended in water, and 5 per cent hydrochloric acid and a bleaching liquor containing 2 per cent available chlorine are added with stirring as long as chlorine is absorbed, the liquor being always acid but not exceeding 0.05 per cent hydrochloric acid in acidity.  The sawdust is then filtered off, washed, and stirred with a dilute caustic soda solution containing about 8 per cent of caustic soda on the weight of the wood.  The pretreatment process reduces the consumption of chemicals required in the pulping stage of the process, e.g. of alkalies (soda and sulphate processes), chlorine or nitric acid. Specification 438,435, [Group IV], is referred to.
Patent GB-764563-A (GB)
Title: Improvements relating to trailing vehicles from tractors or from agricultural machines
IPC: B60D1/167
Filed: 1955-02-10
Abstract: 764,563. Couplings for vehicles. MASCHINENFABRIK FAHR AKT.-GES. Feb. 10, 1955 [Feb. 16, 1954], No. 4001/55. Class 103(5). A draw bar 9 from a tractor is connected to a fixed axle 2 of an agricultural machine by pivot pins 6 and U-shaped shackles, 7, 8, and is extended to tow a trailer behind the machine by a rail 10 of rectangular cross-section, on which rail a sliding rider 11 having a coupling jaw 17 may be adjustably secured by engaging a pin 12 in one of a series of holes 13. The rail 10 is strutted by a rod 14 fixed at one end to a rotatable sleeve 15 and at the other end adjustably positioned to. one of three eyes 16. The pin 12 may be disengaged to allow the rider 11 to slide and increase the effective length of the rail 10 when negotiating turns and so on, by the driver pulling a member 19 to pivot a bell crank lever 18 against a spring 20 and lift out the pin 12. In a modification the rail 10 may be connected directly and centrally to the tractor.
Patent GB-418952-A (GB)
Title: Improvements in or relating to showcards, price tickets and the like
IPC: G09F3/04
Filed: 1934-02-08
Abstract: 418,952. Advertising on tins; showcards. HAMPSHIRE & CO., Ltd., F. W., and WEAVER, F. W., Sunnydale Works, Sinfin Lane, Derby. Feb. 8, 1934, No. 4175. [Class 3 (ii).] A showcard, price ticket or the like comprises a base portion 13, shaped to fit within the lever lid of a tin 10, and a display portion 14 hinged to the base portion and supported in an inclined position by a cutout tongue 17 engaging in the space between the lid and the tin. Shoulders 15 formed on the card and abutting the rim 12 of the lid provide additional support. According to the Provisional Specification, the support 17 may comprise a separate piece hinged to the card.
Patent GB-455036-A (GB)
Title: Connection system for television tubes
IPC: H04N3/20
Filed: 1935-02-11
Abstract: 455,036. Converting. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Feb. 11, 1935, No. 4282. Convention date, Feb. 12, 1934. Addition to 441,762. [Class 38 (ii)] In a cathode-ray receiver energized from the mains the time constants are so arranged that (i) dangerous potential differences do not occur when current is switched on or off and (ii) striation due to ripple is eliminated by causing the potentials of the grid and cathode to fluctuate in phase with one another. The control grid 9 of the cathode-ray tube 16 is supplied with picture current from a receiver 12 through a coupling condenser 11, and the anode 20 is earthed at 13. In order that fog may be avoided the time constant of the circuit 11, 22 must be small in comparison with the frame frequency; at the same time the grid 9 must be prevented from becoming positive with respect to the cathode 8 during the transient condition which occurs when current is switched on, particularly if the cathode is still hot as a result of recent use ; and the time constant determined by the condenser 7 and resistance 6 of the supply filter has to be large in order that ripple may be eliminated. In the arrangement shown in Fig. 1 these requirements are reconciled by making the time constant of the circuit 10, 11 equal to or slightly smaller than that of the circuit 6, 7, so that the grid 9 and cathode 8 change potential at nearly the same rate when the mains switch 2 is opened or closed. The Specification as open to inspection under Sect. 91 comprises an arrangement, Fig. 3 (Cancelled), in which the grid 9 and cathode 8 are caused to fluctuate in potential, in accordance with the ripple in the supply voltage, in such a manner that the fluctuations are in phase with one another and the grid bias is therefore free from ripple. The resistance 22 of the receiver being negligible, the potential of the grid 9 tends to exhibit less ripple than that of the cathode 8 since it is smoothed by the resistance-capacity coupling 10, 11 as well as by that 6, 7, which serves the cathode. The potentials of 8 and 9 are, however, equalized by making points a, b conjugate in the bridge formed by the arms 6, 7 and 10, 11. In order that fog may not be produced in the picture in consequence of the circuit 10, 11 having two small a time constant, a large additional capacity 24 and high resistance 25 are added as shown; in this way a larger amplitude of ripple is applied to grid 9 through condenser 24, and accordingly the resistance 10 and capacity 11 can both be increased to give the required magnitude to the time constant. In order to prevent the occurrence of transient positive bias when the current is switched on while the cathode is hot, the device described in Specification 446,547, [Group XL], can be added to the arrangement shown in Fig. 3 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-155855-A (GB)
Title: Improvements in earth boring apparatus
IPC: E21B7/26
Filed: 1919-09-22
Abstract: 155,855. Mangnall, A. R. Sept. 22, 1919. Bore-hole apparatus.-In earth-boring appara, tus comprising a pilot head a secured to a length of rigid pipe, rod, &c. band actuated by a pushpipe &c. to bore by displacement, a second larger pilot head d is situated, during the boring operation, at the rear of the rigid pipe &c. to prevent upward deflexion. Collars c, f, reduce friction and lateral deflexion. Specification 153.931 is referred to.
Patent GB-223478-A (GB)
Title: Combination table article
IPC: A47J43/26
Filed: 1924-02-21
Abstract: 223,478. Quitadamo, J. Feb. 21, 1924. Nut-crackers.-A combination table article comprises a knife formed with a longitudinally divided handle b, d one part d being hinged, the opposing faces being corrugated in shape certain of the corrugations f being serrated to act as nutcrackers, the ends of the handle parts being formed to act as grape scissors or snippers. As shown in Fig. 1, the nippers comprise two meeting edges i while, as shown in Fig. 4, the scissors are formed by a rib j and slot k.
Patent GB-124048-A (GB)
Title: Improvements in or relating to Tooth Brushes.
Inventor: BONNARD ALFRED HENRY
IPC: A46B9/04
Filed: 1918-03-13
Abstract: 124,048. Bonnard, A. H. March 13, 1918. Tooth-brushes.-In a tooth-brush, the stock B is made shorter than usual, is offset from the handle A, and is V-shaped with its narrow end pointing towards the handle and along a line parallel thereto. Bristles project from both sides of the stock, and may be continued round the narrow end as indicated at B<3>. An ordinary tooth-brush A<1> may be attached at the opposite end of the handle.
Patent GB-882406-A (GB)
Title: Apparatus for washing vegetables
IPC: A23N12/02
Filed: 1960-02-09
Abstract: 882,406. Vegetable washing. REVILL, G. W. Sept. 5, 1960 [Feb. 9, 1960], No. 4476/60. Class 28 (2). Celery, carrots, &c., placed on the spaced tensioned endless wires a<SP>2</SP> stretched between rollers a<SP>1</SP> are conveyed tinder a cover b where water sprays from above (c) and below (d) and laterally wash them the dirty water being deflected at h and out at h<SP>1</SP>. The structure has end windows and polythene feed flaps b<SP>1</SP>. Forced draught may dry the vegetables at the end. The tops may be cut off by a rotary cutter before the vegetables pass under the cover b.